55 lines
2.3 KiB
C
55 lines
2.3 KiB
C
/* $NetBSD: mii_bitbang.h,v 1.6 2009/05/12 14:31:27 cegger Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
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* NASA Ames Research Center.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#define MII_BIT_MDO 0 /* data out (host->PHY) */
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#define MII_BIT_MDI 1 /* data in (PHY->host) */
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#define MII_BIT_MDC 2 /* clock */
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#define MII_BIT_DIR_HOST_PHY 3 /* set direction: host->PHY */
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#define MII_BIT_DIR_PHY_HOST 4 /* set direction: PHY->host */
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#define MII_NBITS 5
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struct mii_bitbang_ops {
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uint32_t (*mbo_read)(device_t);
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void (*mbo_write)(device_t, uint32_t);
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uint32_t mbo_bits[MII_NBITS];
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};
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typedef const struct mii_bitbang_ops *mii_bitbang_ops_t;
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int mii_bitbang_readreg(device_t dev, mii_bitbang_ops_t ops,
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int phy, int reg);
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void mii_bitbang_sync(device_t dev, mii_bitbang_ops_t ops);
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void mii_bitbang_writereg(device_t dev, mii_bitbang_ops_t ops,
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int phy, int reg, int val);
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